Razor



July 3, 1928. 1,675,487

H. I. GAHAGAN ET AL RAZOR Filed March 1927 2 Sheets-Sheet 2 Fig. 4. 57 5 16. 2/

PM July 3, 192a UNITED STATES -1,s75,4az 'IPATENT OFF-ICE.

I. GAIAGAI AID WILLIAI P. ARON, OI DALLAS, TEXAS, ABBIGIIOIB, I! ma ASBIGW'IB, 1'0 m W318! RAZOR OOBPOMTIOR, OI BUI'IAIIO, m

YORK, A NBPOIA'IIOI 0] m YOBI.

nazon.'

Application mama '1, 1927. Serial Io. 17am.

This invention relates to razors and with regard to certain more specific features, to electrically operated safety razors.

Among the several objects of the invention' may be. noted the provision of an electro-magneticall operated safet razor, having a recip ly operable bla e whose motion, when compounded with the ordina motions used in shavi provides a desirable oblique cutting action; the provision of a red rocally operable blade of the class descri adapted to provide a desirable massa 'ng efiect to the skin as shaving proceed s; the provision of means for providing a maximum cutting stroke with a armature action said armature action and cuttin stroke being adjustable; the provision o ready means for conveniently setting the razor for purely manual operation; and the revision of means of t e class described which is simple, rugged and compact in design and dependable in operation, having a minimum number of movi elements easily assembled,

said device being economical of manufac-- ture. Other objects will be in part obvious and in part mted out hereinafter.

The invention accordingly comprises the elements and combination of elements, features of construction, and arrangements of parts which will be exem lified inthe structure hereinafter describe and the scope of the application of which will be indicated in the ollowing claims.

In the accompanying drawings, in which is illustrated one of various possible embodiments of the invention,

Fig. 1 is a rear elevation of the razor;

Fig. 2 is a perspective view thereof, taken from the front and side;

Fig. 3 is a sectional view of the razor head taken substantially on lines 3-3 of Fig. 1;

Fig. 4 is a vertical section of the razor viewed from the rear;

Fig. 5 is a plan view of the lower section of a guard;

Fi 6 is a perspective view of an upper guar section adapted to fit with the guard section of Fig. 5;

Fig. 7 is a rear elevationof the preferred form of blade used with and forming a part of the invention;

Fig. 8 is a plan view of said blade; and

Fig. is a perspective view of'a blade actuating element and armature.

Corresponding reference characters vindicate correspdn ing arts throughout the several views of the d i'awings. Y

Referrin now more particularly to Fig. 1, there is 1 lustrated at numeral 1, a hollow handle composed preferably of a dielectric and non-corroding material such as bakehte, hard rubber or the like. This handle 1 has screwed thereto a head or cap 3, preferably composed of the same material and .encloslng within the handle 1 an electromagnetic coil or solenoid 5. The coil 5 is provided with a suitable magnetic core 7, the ulpper end of which is screwed through said ead 3 whereb the relative 'tions of the handle 1 (inc uding the hea a and the core 7 may be adjusted. A set screw 9 is adapted to maintain any given adjustment. Suitably insulated current leads 11 are provided for the solenoid 5, passin out of an opening '13 in the handle 1 and eadto a suitable source of alternating or mterru current.

The ead 3 is shaped to include an inclosmg bracket portion 15 to which is held by suitable screws 17, a ower guard 19. In

some designs made under this invention it may be desirable to form the guard 19 as an mtfigral portion of the head 3.

eld to said lower guard 19, by means of another suitable set of screws 21, is an upper guard or cap 23 havi a channel or groove 25 cut therein, for t e ur of slidably accommodat' one Bldg 0 a reenforcing rib 27 form alon the rearward unsharpened ed e of the bla e B (see Figs. 2, 6 and 8). e other side of and rib 27 rests on the flat surface of the lower guard 19, while the steel blade 29 r 'se fits in a slidablemanner between a ridge 31 of said lower guard 19 and a spaced tongue 33 of said upper guard 23. As illustrated inFig. 5, recemes 35 are formed in the lower guard 19, in order to enable a urchase to be had by a user on the blade 2 so that said blade may be convenient] inserted and with drawn when desi Theblade B has the rib 27 pinched thereover. Its rear unsharpened is ro-' vided with two notches 37, one of w 'ch during assembly becomes positioned, in an opening 39 formed in said rib 27. The openings 37, 39 in the blade B are unsymmetrically located. Two notches 37 are used in order that the blade and rib may be as semblcd in either of their two relative positions but only one opening 39 is used. The blade is suitably sharpened at its front edge 41. A small recess 43 at one end of the rib 27 permits the aforesaid purchase to be had on the blade when removal is desired. The finger nail of the user ma be positioned in this recess 43 'to accomplis the end in view.

In order to impart reciprocating motion to the blade B, when it is slidably positioned between the guards 19 and 23, a boss 45 is provided, forming an integral portion of said lower guard 19 at one end thereof. To this boss is fastened, referably by means of a screw 47, a flexib e springing magnetic armature 49.

The armature extends in a direction parallel with the underside of the guard 19 to a point adjacent the opposite end of msaid guard, the parallel portion being nor ally positioned in proximity to an outwardly positioned nose 53 of said solenoid core 7.

It is evident that the free portions of the spring armature 49 will be caused to vibrate when alternating, varying or interrupted current is applied through the solenoid 5. With the alternating or like current usually available, the vibration takes place at a rapid rate.

he purpose of vibrating the armature 49 is to reciprocate the blade B (with its rib 27); and 111 order to readily accomplish this end, an arm or fin er 55 having a nose 57 is angfillarly turned up from the armature 49. is arm 55 (with its nose 57) is adapted to pass loosely through an openin 59 in the guard 19 and into a recess 61.

The notch 37 is normally positioned between the o ning 59 and recess 61 where it is adapte to be engaged by said nose 57. Consequently, the vibratory action of the armature 49 in vibratin the nose 57, results in the blade B receivlng a reciprocating movement between the guards 19 and 23. The opening 59 and recess 61 are of such dimensions as to freely accommodate the lateral movements of the arm 55 and nose 57.

One of the objects of this invention is to provide means for readily inserting and removing blades. For this purpose, a recess 63 is provided in the arm 55, just below the nose 57, which recess in normal operation of the razor is positioned below the notch 37 the nose 57 at this time engaging said notch 37. A downwardly directed finger 65, also a part of said armature 49 is so arranged'that thereby the armature may be sprung-upwardly when the said finger 65 is manna y lifted. This action forces the nose 57 well into the recess 61 of the upper guard 23 and causes the r 63 to register with the blade members, 27, 29, whereby the blade members are in cleared position for unrestricted movement, out from between said guards 19 and 23. An analogous operation is performed in replacing another blade.

It is evident that the relative adjusting movement possible between the armature 49 and the core'7 permits an operator to vary the blade stroke at will.

If, for any reason, the sup ly of current should fail at the leads 11, t is razor may be readily converted to a non-reciprocating type by removing the blade in the manner above described and replacin" it, after having changed its position end for end. The armature is maintained in its raised position during this operation. The reversal of the blade position takes the notches 37, 39 out of register with the openings 59, 61 and consequently upon releasing the finger 65, the nose 57 instead of engaging said notch 37, engages the unnotched region 69 of the rib 27, thereby tightly pressing the blade into a shaving position.

It is evident from the above that the handle 1 and cap 3 form a case into which water will not readily enter, the opening 13 being at the bottom thereof. This case may be readily disassembled for purposes of replacing the solenoid or other parts and for the urposes of making adjustments. The bake ite or like composition of the guards resists undesirable heat and at the same time rovides a light wei ht device.

It s ould be noted that t e screws 47 form the virtual center for the vibratory action of the armature 49. The attracting nose 53 ofthe solenoid is closer to this center than the point of en agement between the nose 57 and the note 37 and because the movement of points on a bod movable with res t to a given center 1s directly proportlonal to the distance of the res ctive mts to said center, the motion is multiplied. Hence, for a slight movement of the armature 49 at the nose 53, a considerable movement of the blade B is had.

In view of the above, it will be seen that the several objects of the invention are achieved and other advantageous results attained.

As many changes could be made in carrying out the above constructions without dearting from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as i1 ustrative and not in a limiting sense.

We claim:

1. The razor comprising a blade member a handle and a head thereon for holding blade, an armature ada ted to be vibrated by means within the ban said armature having a finger thereon which in normal position enga finger, the armature being manually movable to a sprung position wherein the recess and the blade member align, thereby permittin release of the blade and replacement thereo in its other position beneath said finger of the sprung armature, whereby u n manually releasing said armature said blade is non-reciprocally held in said head by the reaction of said finger of the sprung armature.

2. The razor comprising a blade member, a handle and a head thereon for holding said blade, an armature adapted to be vibrated by means within the handle, said armature having a finger thereon engaging an opening unsymmetrically located in the blade member, a recess in said finger, the armature being manuall movable to a s rung position wherein t e recess and the lade member align, thereby permitting release of the blade and a reversal of the position thereof in said head, said reversal resulting in the blade being non-reciprocally fixed in said head upon release of said armature.

3. The razor comprising a blade member, a handle and a head thereon for holdin said blade, an armature adapted to be v1- brated by means within the handle, said armature having a finger thereon engaging an opening unsymmetrically located in the blade member, a recess in said finger, the armature being manually movable to a position wherein the recess and the blade member align, thereby permitting release of the blade and a reversal of the sition thereof in said head, said armature eing resiliently mounted so as to react to hold the blade in position when the blade is reversed, so as to cause engagement of said finger with a portion of the blade having no openin In testimony whereof, we have signe our names to this specification this second day of March, 1927.

HERMAN I. GAHAGAN. WILLIAM P. ARON. 

